Corsi Collection of Decorative Stones

view of stone 141

Corsi 141, approx. 145 x 73 x 40 mm, © Oxford University Museum of Natural History

OUMNH Number: 141  
Name and quarry location: Bigio antico, bigio morato, locality unknown  
Geological description: Grey-brown bioturbated limestone with a few mollusc fragments. Note white coarse-grained spar-filled cavities and fractures, and abundant stylolites. The surface is waxed and polished.  
Comments: Nothing is known about where this stone is from. Superficially it looks like the finely veined formed of portoro ('portoro macchie fine') but the yellow in the stylolites is filler/polishing compound, not a feature of the stone.  
References: Corsi (1845) 106-108; Gnoli (1988) 192-195; Lazzarini (2002c) 244, 265; Lazzarini (2003); Pensabene (1998); Price (2007) 76  
Further information:

Corsi's classification: Class 1. Marbles; Section 2. Veined marbles; Species 10. Grey marbles; i. Ancient grey marbles  
Corsi's text: 62.3 Bigio antico. Marmor Batthium. Battio. Bigio ondato  

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